Amazon.com: 9704230 Blender Coupler with Spanner Kit and 9704291 Blender Blade 4 Leaf With Rubber Gasket Seal, Part Number WP9704230VP, WP9704230, 9704267 9706716 Compatible with KitchenAid KSB5 KSB3, Pack of 5 : Home & Kitchen
OEM KitchenAid WP9704291 Dome and Blade Assembly - Fix.com
INFORMATION - How to remove and replace your New Style Coupler on a Kitchenaid KSB555 Blender - YouTube
KitchenAid Blender Blade 9704291 with blender gasket